A 100nW Power Overhead Load Interface for Electrostatic Vibrational Energy Harvester with a High Biasing Voltage

Mohammed Bedier (1) , Dimitri Galayko (1)

1 CIAN - Circuits Intégrés Numériques et Analogiques

Electrostatic vibrational energy harvester (e-VEH) appeals to the ever expanding applications of self powered sensors. The capacitive transduces and their conditioning circuits are extensively studied in literature, yet usually lacking a load interface that manages that energy extraction from the harvester and efficiency delivers it to a load. A load interface, as well as its controller, designed for Bennet's Doubler conditioning circuit is presented in this work. The energy extraction from the harvester is achieved through a multiple energy-shot transfer process to minimize the resistive energy loss. The load interface controller simulation shows a low power overhead of less than 100nW making it adequate for practical implementation.

Mots clés: Energy harvestingelectrostaticvibrationMEMSload interface

Domaines: Energie électrique; Electronique; Electromagnétisme

Mohammed Bedier, Dimitri Galayko. A 100nW Power Overhead Load Interface for Electrostatic Vibrational Energy Harvester with a High Biasing Voltage. The 30th EUROSENSORS conference (2016), Sep 2016, Budapest, Hungary. ⟨10.1016/j.proeng.2016.11.492⟩. ⟨hal-01521807⟩